Squidwrench Electronics Workshop: Session 6 Whiteboards

Coverage of capacitors as charge-storage devices, rather than filters:

Session 6 – Whiteboard 1 – overview

We avoided all the calculus and derivations, taking the exponential waveform as a given for RC circuits:

Session 6 – Whiteboard 1 – exponential detail

Discussions of dielectrics, plate spacing / area, and suchlike:

Session 6 – Whiteboard 1 – dielectric permittivity

Some handwaving discussion of construction, electrolytic capacitor innards, and The Plague:

Session 6 – Whiteboard 1 – cap construction

A 1 F cap charged through a 1.8 kΩ resistor during most of the session to show what an 1800 s time constant looked like. Nope, it never quite got to the 3.5 V from the power supply, even when we all decided it was time to shut down!

One a day, every day…

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